Pump transmission mechanism.



J. 0. SHAFER.

PUMP TRANSMISSION MECHANISM. APPLICATION FILED MAY29. 1914';

Patented Apr. 13, 1915.

2 SHEBTS8HEET 1.

7HE NORRIS PETERS 60., PHOTO-L!THO..WASHING1UNI D. C.

J. O. SHAFER.

PUMP TRANSMISSION MECHANISM.

APPLICATION FILED MAY 29. 1914.

l lwmm I Patented A r. 13, 1915.

2 SHEETSBHEBT 2.

4N lirrtg M a 28 6 4-," L I o THE NORRIS PETERS CO., PHOTC-LITHQ. WASHINGTON D, C

martian snares i e-trans FFT@E.

JESSE O. SHAFER, 0F BLUFFTON, INDIANA, ASSIGNOR'TU THE GEO. W. GRIMES- COMPANY, OF BLUFFTQN, INDIANA, A. CORP IFI'tJ lJIIFION OF INDIANA.

PUMP TRANSMISSION MECHANISM.

Application filed May29, 1914.

To all whom it may concern Be it known that I, Jnssn O. sI-IAITER, a citizen of the United States, residing at Bluffton, Wells county, and State of Indiana, have invented and discovered certain new and useful Improvements in Pump Transmission Mechanisms, of which the following is a specification.

My invention relates to power transmission mechanisms for oil well pumps. Its objects are to provide a band wheel which shall be capable of eflectively resisting the usual strains imparted thereto and yet which shall be simple in construction; to provide means for making the wheel readily removable from its support and means for obtaining a centering of the rim of the band wheel without springing the rim or distorting the spokes.

With these objects in view my invention is embodied in preferable form in the construction hereinafter described and illustrated in the accompanying drawings.

In these drawings, Figure 1 is a plan View of the wheel; Fig. 2 an enlarged detail section on line 2-2 of Fig. 8 of the hub and central portion of the wheel; Fig. 3, a detail elevation of hub; Fig. 4 a vertical section on line t4 of Fig. 2 of upper part of support, standard and hub; Fig. 5, a vertical section of wheel supporting means; Fig- 6, a horirental section on the line 6-6 ofv Fig. 5,

looking up; Fig. 7, a section on line 7--7 of Fig. 5, looking down; Fig. 8, a-section on line 8-8 of Fig. 5; Fig. 9 a section on the line 99 of Fig. 5 and Fig. 10, a detail section on line 1010 of Fig. 5.

Referring to the drawings, 1 is the rim of the band wheel which the belt or band from the engine engages and 2 are the driver spokes and 3, tension spokes. A supporting frame 4 of usual structure is provided and from the corners of this frame extend guy rods 5 which are connected to a sleeve 6 which is fixed on the reduced upper end stem 7 of a fixed supporting post 8 around which is adapted to rotate thewheel supporting sleeve 9. The post 8 is provided at its lower end with a reduced stem 10 which fits within a socket formed in a fixed base member 11. This base member has an up- Specification of Letters Patent.

Sreial No. 841,828.

per cup-shaped portion 12 in which are mounted suitable ball bearings 13, the upper half of which bearings is adapted to receive the lower face of the rotatable sleeve 9. To more eifectively distribute the torsional and tension strains between the driving rim and the hub of the wheel, the driver spokes. 2 and the tension spokes 3 are divided into upper and lower decks or series, by connecting the alternate spokes with the hub of the wheel at points disposed in two different horizontal planes. The ends of the spokes that join the rim, however, are connected thereto in the same plane. The driver spokes 2 that are inclined downwardly from the rim are adapted to pass through and be connected to lugs 14 which extend upwardly at intervals from an annular horizontal flange 15 which is provided at its outer edge with an annular vertical flange 16 through which the downwardly projecting tension spokes 3 are adapted to pass and to which they are fastened. The lugs 14 and flange 15 are preferably cast integral with the sleeve of the hub 17 which is suitably keyed to the, rotating sleeve 9. This hub is elongated vertically and near its upper end is Patented Apr. is, raw.

provided with radial and vertical lugs 18,

part of thehub and a spoke joining the lower part are arranged to meet at an angle approaching a straight angle. These respective pairs of spokes thus serving to oppositely brace the rim of the wheel.

21 indicates a vertical key adapted to con nect the sleeve 9 and the hub 17.

The inner ends of all the spokes are threaded and are engaged by nuts on the inner sides of the lugs and such lugs are horizontally spaced from the body of the hub. Owing to this arrangement, the run These lugs I be. adjusted. to center the same by tightening the nuts on the endsof the driver spokes, which. permits such action to be' effected without springing the rim or dis- 'tortingthe driver spokes.

comprises the rim. portion 24 and hub 25' and a retainingring 26. A- horizontal key 27 connects the hub of the wheel 22 with v sleeve 9., The hub of the eccentric wheel 22 has a downward prolongation 28 which rests 7 upon thering 26 and similarly the hub 25 I.

is provided with a downward prolongation 28. This prolongation -28 of the hub is adapted to rest upon the two halves ofa split ring 29 which is seated partly in a recess formed in thelower portion of said 25 V in the sleeve 9. By means-of this arrange prolongation and partly in a recess formed ment after the horizontal keys connecting the eccentrics with the sleeve 9 have been removed or loosened, the eccentrics may be raised; slightly and the two halves of the ring 29 lwithdrawn, thusji permitting the '5 withdrawal" downward of the eccentrics I with respect to the post 10 when saidpost;

has'been released from its standard, which operat on enables the eccentr cs to. be removed for repair or replacement without removing the bahdwheehsuch as has cusj thus requiring first the removal of the-band tomarily been required owing to the fact that "heretofore. provision has been made onlyfor removing said eccentrics upwardly,

.ei yvheel. In the lower part of the, fixed post is to permit of aslight.upwardadjustmentof the, post by driving the wedgein a greater 10 is mounted a horizontally projecting wedge-shape key 30 which connects said post 'with the base 11 and the function of which or less distance. Witha post thus adjustably; mounted and having connection to the; base, solely through said key, the desired 5 rigidity of connection between baseand post scannotbeobtained. ,Hence, I provide inas I sociation' with saidfl'horizontally sloping V 'wedge-shape key a3O 'a wedge-key; 31 which passesfthrough the "wall of the base member and isadapted to bear against a clamping 'block 31' which bears rigidly against the Copies of this patent may be obtained for five cents each, .by addressing the I a Washington, D. C.

reducedportion ofthe post and serves to holdsaid post rigidly connected to the base memberin any position .to which the post The sleeve'9 is adapted to drive a pair of eccentric wheels from which power'is to be stantially as described.

7 divided into a" plurality may be adjusted by means of the wedge of non-radial larger driver spokes between said rim and hub, said hub having integral therewith annular radial horizontal upper .and lower flanges, said flanges being pro- 'vided with vertically extending flanges to which separate groups of said tension spokes are respectively connected, said upper radial flange having a series of separated downwardly projected vertical lugs, said lugs provided with apertures adapted to receive a number of said driver spokes, said lower radial flange being provided with upwardly projected separated vertical lugs, said latter lugs being provided with apertures to receive the remaining driver spokes, sub- 2. In combination with a band wheel for transmission mechanisms, a rotating supporting member upon which said band wheel is mounted, a power transmitting member mounted on said rotating member, a fixed post on which said rotating member is mounted, a horizontal key accessible for removal to detachably connect said band wheel and transmitting members to said rotating member and separable means supporting one of saidtransmitting members on said rotatingmember and permitting the separation of the former from the latter in a downward direction, substantially as described. 3. In combination with a band wheel, a rotating member to which said band wheel is fixed, a fixed postsupporting said rotating member, a transmitting member detachably secured to said rotating member, a supporting ring surrounding said rotating member and on which said transmitting member is adapted to rest, said ring being of parts whereby the support may be withdrawn. to permit the downward separation of the transmitting member from the post, substantially as described. I

In witness whereof, I have hereunto set my hand and seal at Bluflton, Wells county,

Indiana this 26th day of May, A. D. nine teen hundred and fourteen.

JESSE O. SHAFER. Witnesses: R0131. BARR,

HOWARD L. Norms.

Commissioner of Patents, 

